textproduct: Quad Cities

KEY MESSAGES

- Scattered snow showers will linger early this morning along and north of I-80 which could lead to slippery travel conditions for the morning commute.

- Seasonable temperatures are expected for the next few days with warmer conditions, into the 30s and 40s, expected by late in the week.

SHORT TERM /THROUGH TONIGHT/

Issued at 300 AM CST Tue Feb 3 2026

A narrow band of moderate to briefly heavy snow developed last evening across northern Iowa and shifted to the southeast through the overnight, bringing a round of accumulating snow to areas mainly along/north of I-80 through 3 AM. Mid-level (700-600mb) fgen response intersecting a saturated DGZ, coupled with steep lapse rates near 8 C/km, resulted in a well developed narrow band of snow with SLRs around 20:1. The highest report as of 130 AM was 2 inches in Lowden, and there will likely be a narrow corridor to the ESE (portions of Clinton, NE Rock Island, southern Whiteside, and into northern Bureau Counties) where snowfall totals will reach 2-3 inches by early this morning. The snow band and scattered snow showers to the west should gradually diminish through 4 to 6 AM this morning. For the rest of today, expect seasonable temperatures with highs in the mid 20s north to near 30 along I-80 and lower 30s in the south. High pressure building in will lead to a decrease in cloud cover and to light northerly flow. Lows tonight will be in teens and single digits.

LONG TERM /WEDNESDAY THROUGH MONDAY/

Issued at 300 AM CST Tue Feb 3 2026

Wednesday... Looking to a dry middle of the week as the longwave trough over our CWA continues to drift towards the southeast and ridging builds in over the western CONUS. This will provide large-scale subsidence across Iowa through Thursday. A surface high to the northwest will keep winds light and out of the north, keeping temperatures slightly below average as radiational cooling can maximize Tuesday night.

Thursday through Friday... A strong NW-SE oriented jet streak will advect down across the northern Great Plains allowing for a deepening of the Hudson Bay low. Surface winds will shift out of the south ahead of the approaching cold front, and according to the LREF, there is a 90% chance that temperatures will reach above freezing either Thursday afternoon or Friday morning across the entire CWA. This trend comes to an end on Friday afternoon as the cold front pushes south, returning the CWA to northwesterly flow. There is disagreement among ensemble models on the southward extent of precipitation with this event due to mid- level dry air advection and the amplitude of the 500 mb trough; NBM PoPs continue to remain under 10%.

Saturday through Sunday... There is uncertainty in the timing of the next clipper system, but there appears to be agreement among ensemble models of a surface high anchoring to our north and east. This will introduce a southerly component to the wind, allowing for the warming trend to continue into next week with NBM highs in the mid 30s to mid 40s by Monday.

AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/

Issued at 1110 AM CST Tue Feb 3 2026

High pressure will keep sustained winds under 10 knots through 00z/05. Diurnal gusts above 10 knots are possible through 23z/03 and again after 16z/04.

DVN WATCHES/WARNINGS/ADVISORIES

IA...None. IL...None. MO...None.